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Misfueling: What if Gasoline is Fueled into a Diesel Car and Vice Versa?
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 14, 2013 by SAE International in United States
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Diesel cars are sometimes refueled with gasoline by mistake. Already small amounts of gasoline are harmful for diesel fuel's lubricity, cetane number, viscosity and flash point, and may cause vapor bubbles. Cases are laborious to fix. Repair costs may be thousands of euros if fuel injection system break down has taken place.
Misfueling of diesel fuel into gasoline is not common in cars but may take place in non-road engines refueled from canisters. This will cause engine oil dilution, reduced octane number and running problems. Adding of SCR-urea into fuels causes serious problems. Coolant and windshield washing concentrate may be added thinking that they help to dissolve water into fuel; only additives indented for fuels shall be used.
Practice has shown that even automotive professionals may not know which misfuelings are serious and which are harmless. Some misleading advice has also been distributed by the media. Old rules allowing gasoline in diesel fuel in order to enhance cold operability are not valid with modern fuel injection systems.
CitationMikkonen, S. and Engman, A., "Misfueling: What if Gasoline is Fueled into a Diesel Car and Vice Versa?," SAE Technical Paper 2013-01-2692, 2013, https://doi.org/10.4271/2013-01-2692.
- “Falsch getankt - was tun?” (What to do after misfueling), www.adac.de, March 2013.
- Müller, H., Krome, J. and Kühnau, U., “Novel Fuel Sensor - Innovation for Cold Start Improvement and for the Prevention of Misfuelling,” SAE Technical Paper 2007-01-0394, 2007, doi:10.4271/2007-01-0394.
- Mikkonen, S., Kiiski, U., Saikkonen, P. and Sorvari, J., “Diesel Vehicle Cold Operability: Design of Fuel System Essential besides Fuel Properties,” SAE Int. J. Fuels Lubr. 5(3):977-989, 2012, doi:10.4271/2012-01-1592.
- van Walwijk, M., Bückmann, M., Troelstra, W. and Achten, P., “Automotive Fuels Survey. Part 2, Distribution and use”. International Energy Agency, Alternative Motor Fuels Agreement IEA/AFIS. Breda, 1996. P. 199.
- Bowden, J., Johnson, A. and Russell, J., “Octane-Cetane Relationship. Southwest Research Institute”, AD-779 512. San Antonio, TX, 1974. 23 p.
- Gruse, W., “Motor Fuels”. New York, 1967. P. 157.
- Maxwell, T.T. and Jones, J.C., “Alternative Fuels: Emissions, Economics and Performance,” Society of Automotive Engineers, Warrendale, PA, 1995, doi:10.4271/R-143.